Fresh Blood (Supernatural)

"Fresh Blood" is the seventh episode of the paranormal drama Supernatural's third season on The CW, and is the show's fifty-first episode overall. The episode was written by Sera Gamble and directed by Kim Manners; it was first broadcast on November 15, 2007. The narrative follows the series' protagonists Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) as they have their final confrontation with hunter Gordon Walker (Sterling K. Brown), who has been turned into a vampire.

It also features the demise of recurring antagonist Gordon Walker. Brown, who was forced to leave the show due to commitments to the Lifetime Television series Army Wives, was horrified at Gordon's actions in the episode. Mercedes McNab of Buffy the Vampire Slayer and Angel fame made a cameo appearance, and was also busy filming the television series Reaper during the episode's production.

The episode received ratings near the season average, and garnered generally positive reviews from critics. Brown's performance was praised, as well as the twist in his character's storyline. Also applauded were both Sam's confrontation with Dean over his recent reckless behavior and the resulting reconciliation at the episode's end. Many critics found the presence of character Bela Talbot (Lauren Cohan) in the episode to be pointless, while the critic for TV Guide enjoyed McNab's cameo and wished it had been longer.